Severe Performance penalty when Typemock is enabled

Hi,

I have just begun looking into Typemock and I have come across a big obstacle. The problem is that normally the execution time for our integration tests is about 1 sec a piece. However, when I enable Typemock and execute them in "Not debug" mode the execution time jumps to about 40 sec. If I run them in debug mode with typemock enabled the execution time is about 3 sec. I am using MSTest and the problem seems to be the same regardless of whether the tests are run from within VS05, from the commandline, or through TFS.

The test looks essentially as follows :

InitializeContext();

using (RecordExpectations r = new RecordExpectations()) {
r.MockAllInstances = true;
DefaultChannelFactory<IUValueBasedataProvider> baseDataProvider = new DefaultChannelFactory<IUValueBasedataProvider>();
baseDataProvider.Channel.GetFillingBasedata("", new Dictionary<string, UValueFillingRecord>());
r.Return(new DynamicReturnValue(ReturnFetchedFillingBaseData));

baseDataProvider.Channel.GetCombinationBasedata("", new Dictionary<string, UValueCombinationRecord>());
r.Return(new DynamicReturnValue(ReturnFetchedCombinationBaseData));
}

DoWork();
EvaluateResult();

The mocked calls are WCF calls to another service. We are currently using the trial edition of version 4.2.3.0

Any ideas as to what might be the cause of this slowdown?. As I said, I am newbie, so I might well be that I am doing something wrong.
--
Lars